Text Appearing Before Image: obstetrics, it isnecessary to briefly review its leading features. The inversion may be partial, the fundus not extendingbeyond the mouth of the uterus; it may extend throughthe os uteri into the vagina; or the inversion may be socomplete that the uterus from mouth to fundus is turnedinside out (Figs. 45, 46). In a complete case of acute inver-sion, as it is called when it follows immediately on delivery,the outer surface is formed by the mucous membrane ofthe uterus, and is ragged, vascular, and bleeding, and theinner or uterine ostia of the Fallopian tubes are visible.The interior of this large sac is lined with peritoneum andcontains the round ligaments of the uterus with the Fallo-pian tubes; the ovaries, as a rule, remain on the edges ofthe sac. In some instances small intestine and omentumdrop into the cavity. The manner in which the tubes and 153 154 DISEASES OF WOMEN. ligaments are drawn into the sac is illustrated in the speci-men of partial inversion represented in Fig. 47. Text Appearing After Image: Fig. 45.—Inversion of the uterus and vagina. The dark spot on each side indicates theorifices of the Fallopian tubes (Museum Middlesex Hospital). It is common knowledge that when a body occupies theuterine cavity it stimulates the muscular walls to expulsiveefforts. When the fundus is inverted it is a solid body DISEASES OF THE UTERUS. 155 which can be grasped and driven onward by the muscularefforts of the walls of the uterus, which may continue untilthe uterus turns itself completely inside out. This mechanism explains the method by which a sub-mucous myoma leads to inversion of the uterus. The Round ligament Ovary.
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